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https://www.readbyqxmd.com/read/28646196/nucleoside-reverse-transcriptase-inhibitors-nrtis-induce-proinflammatory-cytokines-in-the-cns-via-wnt5a-signaling
#1
Ting Wu, Juan Zhang, Mingxing Geng, Shao-Jun Tang, Wenping Zhang, Jianhong Shu
HAART is very effective in suppressing HIV-1 replication in patients. However, patients staying on long-term HAART still develop various HIV-associated neurological disorders, even when the viral load is low. The underlying pathogenic mechanisms are largely unknown. Emerging evidence implicated that persistent neuroinflammation plays an important role in NeuroAIDS. Although residual virus or viral proteins are commonly thought as the causal factors, we are interested in the alternative possibility that HAART critically contributes to the neuroinflammation in the central nervous system (CNS)...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28628528/increased-persistence-of-initial-treatment-for-hiv-infection-with-modern-antiretroviral-therapy
#2
Thibaut Davy-Mendez, Joseph J Eron, Oksana Zakharova, David A Wohl, Sonia Napravnik
BACKGROUND: Initiating antiretroviral therapy (ART) early improves clinical outcomes and prevents transmission. Guidelines for first-line therapy have changed with the availability of newer ART agents. In this study, we compared persistence and virologic response to initial ART according to the class of anchor agent used. SETTING: An observational clinical cohort study in the Southeastern United States. METHODS: All HIV-infected patients participating in the UNC Center for AIDS Research Clinical Cohort (UCHCC) and initiating ART between 1996 and 2014 were included...
June 15, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28627486/the-association-between-detected-drug-resistance-mutations-and-cd4-t-cell-decline-in-hiv-positive-individuals-maintained-on-a-failing-treatment-regimen
#3
Anna Schultze, Roger Paredes, Caroline Sabin, Andrew N Phillips, Deenan Pillay, Nicola Mackie, Antonella Castagna, David Chadwick, Karolin Falconer, Anna Maria Geretti, Frank A Post, Teresa Hill, Ole Kirk, Anton Pozniak, Mark Nelson, Anna Tostevin, David Dunn, Jens Lundgren, Alessandro Cozzi-Lepri
BACKGROUND: To analyse the effect of drug resistance mutations (DRM) on CD4 cell trends in HIV-positive people maintained on virologically failing antiretroviral therapy (ART). METHODS: Individuals from two large cohorts experiencing virological failure (VF) while maintained on ART with >1 CD4 count and >1 resistance test were included. CD4 cell slopes were estimated using linear mixed models. Principal component analysis (PCA) was used to assess the effect of clusters of mutations, defined using extracted component based scores from the PCA, on CD4 cell decline...
June 19, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28605493/antiretroviral-therapy-in-geriatric-hiv-patients-the-geppo-cohort-study
#4
Silvia Nozza, Andrea Malagoli, Lilian Maia, Andrea Calcagno, Emanuele Focà, Giuseppe De Socio, Stefania Piconi, Giancarlo Orofino, Anna Maria Cattelan, Benedetto Maurizio Celesia, Elena Gervasi, Giovanni Guaraldi
Background: GEPPO is a prospective observational multi-centric cohort including HIV-infected geriatric patients. We hypothesized that the GEPPO cohort may help characterize antiretroviral (ARV) prescribing criteria used in real life by Italian infectious disease (ID) physicians. Methods: This was a cross-sectional study describing the current ARV regimen in a geriatric HIV population (≥65 years). Antiretroviral strategies were categorized as follows: (i) multidrug regimens (MDRs), which comprised triple or mega ART combinations; (ii) less drug regimens (LDRs), which comprised fewer than three ART compounds...
June 10, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28589513/prevalence-of-hiv-1-transmitted-drug-resistance-in-recently-infected-treatment-na%C3%A3-ve-persons-in-the-southwest-of-iran-2014-2015
#5
Shokouh Ghafari, Arash Memarnejadian, Alireza Samarbaf-Zadeh, Ehsan Mostafavi, Manoochehr Makvandi, Shokrolah Salmanzadeh, Ata Ghadiri, Michael R Jordan, Elham Mousavi, Fatemeh Jahanbakhsh, Kayhan Azadmanesh
The emergence and transmission of drug resistant HIV mutants is a major concern, especially in resource-limited countries with expanding antiretroviral therapy. Studies have recently reported the prevalence of HIV-1 transmitted drug resistance (TDR) mutations in certain Iranian cities; however, no information is currently available about the level of TDR, as well as the nature of the circulating HIV-1 subtypes, in the Southwestern bordering province of Iran, Khuzestan. Herein, we used a WHO-recommended TDR survey method to classify the prevalence of TDR in indigenous people of Khuzestan province...
June 6, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28585361/prevalence-of-hiv-1-transmitted-drug-resistance-in-the-incarcerated-population
#6
J Sapozhnikov, J D Young, M Patel, T D Chiampas, P Vaughn, M E Badowski
OBJECTIVES: The aim of the study was to determine the prevalence of transmitted drug resistance (TDR)-associated mutations among treatment-naïve, incarcerated individuals with HIV-1 infection in the USA as well as the class TDR and antiretroviral (ARV) mutations present at baseline. METHODS: Patients over the age of 18 years were included in the study if they had been diagnosed with HIV infection, if their HIV infection was managed through telemedicine and if they were incarcerated in the State of Illinois Department of Corrections between 10 July 2010 and 29 April 2016...
June 6, 2017: HIV Medicine
https://www.readbyqxmd.com/read/28582463/drug-resistance-testing-through-remote-genotyping-and-predicted-treatment-options-in-human-immunodeficiency-virus-type-1-infected-tanzanian-subjects-failing-first-or-second-line-antiretroviral-therapy
#7
Jenny Svärd, Sabina Mugusi, Doreen Mloka, Ujjwal Neogi, Genny Meini, Ferdinand Mugusi, Francesca Incardona, Maurizio Zazzi, Anders Sönnerborg
INTRODUCTION: Antiretroviral therapy (ART) has been successfully introduced in low-middle income countries. However an increasing rate of ART failure with resistant virus is reported. We therefore described the pattern of drug resistance mutations at antiretroviral treatment (ART) failure in a real-life Tanzanian setting using the remote genotyping procedure and thereafter predicted future treatment options using rule-based algorithm and the EuResist bioinformatics predictive engine. According to national guidelines, the default first-line regimen is tenofovir + lamivudine + efavirenz, but variations including nevirapine, stavudine or emtricitabine can be considered...
2017: PloS One
https://www.readbyqxmd.com/read/28566227/boosted-protease-inhibitor-monotherapy-versus-boosted-protease-inhibitor-plus-lamivudine-dual-therapy-as-second-line-maintenance-treatment-for-hiv-1-infected-patients-in-sub-saharan-africa-anrs12-286-mobidip-a-multicentre-randomised-parallel-open-label-superiority
#8
Laura Ciaffi, Sinata Koulla-Shiro, Adrien Bruno Sawadogo, Cheik Tidiane Ndour, Sabrina Eymard-Duvernay, Pretty Rosereine Mbouyap, Liliane Ayangma, Jacques Zoungrana, Ndeye Fatou Ngom Gueye, Mohamadou Diallo, Suzanne Izard, Guillaume Bado, Coumba Toure Kane, Avelin Fobang Aghokeng, Martine Peeters, Pierre Marie Girard, Vincent Le Moing, Jacques Reynes, Eric Delaporte
BACKGROUND: Despite satisfactory efficacy of WHO-recommended second-line antiretroviral treatment for patients with HIV in low-income countries, the need for simplified, low-cost, and less-toxic maintenance strategies remains high. We compared boosted protease inhibitor monotherapy with dual therapy with boosted protease inhibitor plus lamivudine in patients on second-line antiretrovial therapy (ART). METHODS: We did a multicentre, randomised, parallel, open-label, superiority, trial in the HIV services of five hospitals in sub-Saharan Africa (Yaoundé, Cameroon; Dakar, Senegal; and Bobo Dioulasso, Burkina Faso)...
May 26, 2017: Lancet HIV
https://www.readbyqxmd.com/read/28553415/use-of-proviral-dna-to-investigate-virus-resistance-mutations-in-hiv-infected-zimbabweans
#9
Tutsirai V Musingwini, Danai T Zhou, Doreen Mhandire, Kerina Duri, Exnevia Gomo, Olav Oktedalen, Benjamin Chimukangara, Tinei Shamu, Sandra Shawarira-Bote, Collet Dandara, Babill Stray-Pedersen
BACKGROUND: Antiretroviral therapy (ART) to suppress HIV replication has reduced morbidity and mortality yet effectiveness of current HIV drugs is threatened by HIV drug resistance (HIVDR) mutations. OBJECTIVE: To determine HIVDR mutations using proviral DNA from specimens of patients presenting to an HIV treatment clinic. METHODS: DNA from 103 patients, 86 treatment-experienced, 17 treatment-naïve, were genotyped for the HIV-1C reverse transcriptase gene (RT; codons 21-304) using Sanger sequencing and sequences analyzed using Sequencher software...
2017: Open Microbiology Journal
https://www.readbyqxmd.com/read/28495562/nucleoside-reverse-transcriptase-inhibitor-cross-resistance-and-outcomes-from-second-line-antiretroviral-therapy-in-the-public-health-approach-an-observational-analysis-within-the-randomised-open-label-earnest-trial
#10
Nicholas I Paton, Cissy Kityo, Jennifer Thompson, Immaculate Nankya, Leonard Bagenda, Anne Hoppe, James Hakim, Andrew Kambugu, Joep J van Oosterhout, Mary Kiconco, Silvia Bertagnolio, Philippa J Easterbrook, Peter Mugyenyi, A Sarah Walker
BACKGROUND: Cross-resistance after first-line antiretroviral therapy (ART) failure is expected to impair activity of nucleoside reverse-transcriptase inhibitors (NRTIs) in second-line therapy for patients with HIV, but evidence for the effect of cross-resistance on virological outcomes is limited. We aimed to assess the association between the activity, predicted by resistance testing, of the NRTIs used in second-line therapy and treatment outcomes for patients infected with HIV. METHODS: We did an observational analysis of additional data from a published open-label, randomised trial of second-line ART (EARNEST) in sub-Saharan Africa...
May 8, 2017: Lancet HIV
https://www.readbyqxmd.com/read/28477212/efficacy-and-tolerability-of-switching-to-a-dual-therapy-with-darunavir-ritonavir-plus-raltegravir-in-hiv-infected-patients-with-hiv-1-rna-%C3%A2-50%C3%A2-cp-ml
#11
Giordano Madeddu, Stefano Rusconi, Alessandro Cozzi-Lepri, Simona Di Giambenedetto, Stefano Bonora, Alessia Carbone, Andrea De Luca, Nicola Gianotti, Antonio Di Biagio, Andrea Antinori
BACKGROUND: Nucleos(t)ide reverse transcriptase inhibitors (NRTI) toxicity may represent a threat for long-term success of combined antiretroviral therapy. Some studies have suggested a possible improvement of NRTI-related toxicity after switching to NRTI-sparing regimens. OBJECTIVES: We aimed to explore the efficacy and tolerability of switching to darunavir/ritonavir (DRV/r) plus raltegravir (RAL) while having a viral load (VL) ≤50 copies/mL in the clinical setting...
May 5, 2017: Infection
https://www.readbyqxmd.com/read/28474534/evolution-of-hiv-1-surveillance-drug-resistance-mutations-over-ten-years-in-new-south-wales-australia
#12
Angie Pinto, Alex Carrera, Hanan Salem, Kiran Thapa, Ansari Shaik, Kathy Petoumenos, Philip Cunningham, Roger Garsia, Dominic Dwyer, David A Cooper, Anthony D Kelleher
New South Wales (NSW) has the greatest burden of HIV in Australia, with 2012 and 2013 recording the highest rates of new diagnoses in twenty years. Concurrently, there has been significant changes in antiretorviral treatments and testing paradigms. We compiled a statewide resistance database to characterize changes in HIV-1 resistance mutations over time. Genotypic antiretroviral resistance testing (GART) was performed on request at three reference laboratories using commercial and in house methods. 7629 HIV-1 polymerase sequences obtained from GART from 2004-2013 were retrospectively collated, reformatted, de-identified and analysed using Stanford HIVdb program 7...
May 5, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28447585/metabolic-profiles-of-individuals-switched-to-second-line-antiretroviral-therapy-after-failing-standard-first-line-therapy-for-treatment-of-hiv-1-infection-in-a-randomized-controlled-trial
#13
Amanda H Yao, Cecilia L Moore, Poh Lian Lim, Jean-Michel Molina, Juan Sierra Madero, Stephen Kerr, Paddy Wg Mallon, Sean Emery, David A Cooper, Mark A Boyd
BACKGROUND: To investigate metabolic changes associated with second-line antiretroviral therapy (ART) following virological failure of first-line ART. METHODS: SECOND-LINE was an open-label randomized controlled trial. Participants were randomized 1:1 to receive ritonavir-boosted lopinavir (LPV/r) with 2-3 nucleoside/nucleotide reverse transcriptase inhibitors (N(t)RTI-group) or raltegravir (RAL-group) Two hundred and ten participants had a dual energy X-ray absorptiometry (DXA)-scan at baseline, week 48 and 96...
April 27, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28390117/different-cell-cycle-modulation-in-skov-3-ovarian-cancer-cell-line-by-anti-hiv-drugs
#14
Angelica Perna, Angela Lucariello, Carmine Sellitto, Iolanda Agliata, Maria Carleo, Vincenzo Sangiovanni, Vincenzo Esposito, Germano Guerra, Luigi Cobellis, Antonio De Luca
Anti-retroviral drugs used for the treatment of Human Immunodeficiency Virus (HIV) have proven to be effective even against cancer. Drawing from this background the aim of our research project was to evaluate the effects of anti-HIV drugs that belong to the Nucleoside and Nucleotide Reverse Transcriptase Inhibitors (NRTI, abacavir and tenofovir), Non-Nucleoside Reverse Transcriptase Inhibitors (NNRTI, efavirenz and etravirine) and Protease Inhibitors (PI, darunavir) on ovarian adenocarcinoma cell line (Skov-3)...
March 26, 2017: Oncology Research
https://www.readbyqxmd.com/read/28379449/an-association-between-k65r-and-hiv-1-subtype-c-viruses-in-patients-treated-with-multiple-nrtis
#15
Erasmus Smit, Ellen White, Duncan Clark, Duncan Churchill, Hongyi Zhang, Simon Collins, Deenan Pillay, Caroline Sabin, Mark Nelson, Alan Winston, Sophie Jose, Anna Tostevin, David T Dunn
Objectives: HIV-1 subtype C might have a greater propensity to develop K65R mutations in patients with virological failure compared with other subtypes. However, the strong association between viral subtype and confounding factors such as exposure groups and ethnicity affects the calculation of this propensity. We exploited the diversity of viral subtypes within the UK to undertake a direct comparative analysis. Patients and methods: We analysed only sequences with major IAS-defined mutations from patients with virological failure...
April 3, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28375875/emergent-drug-resistance-with-integrase-strand-transfer-inhibitor-based-regimens
#16
Katherine J Lepik, P Richard Harrigan, Benita Yip, Lu Wang, Marjorie A Robbins, Wendy W Zhang, Junine Toy, Linda Akagi, Viviane D Lima, Silvia Guillemi, Julio S G Montaner, Rolando Barrios
OBJECTIVES: To estimate the incidence of and risk factors for emergent resistance to integrase strand transfer inhibitor (INSTI) and nucleoside(-tide) reverse transcriptase inhibitors (NRTI) in HIV-1-infected adults receiving an INSTI and two NRTIs. DESIGN: Retrospective cohort study. METHODS: Persons aged at least 19 years were included if they received their first prescription for raltegravir, elvitegravir or dolutegravir in British Columbia, Canada in 2012-2014 and were followed to 31 December 2015...
June 19, 2017: AIDS
https://www.readbyqxmd.com/read/28373843/antihyperalgesic-activities-of-endocannabinoids-in-a-mouse-model-of-antiretroviral-induced-neuropathic-pain
#17
Neha Munawar, Mabayoje A Oriowo, Willias Masocha
Background: Nucleoside reverse transcriptase inhibitors (NRTIs) are the cornerstone of the antiretroviral therapy for human immunodeficiency virus/acquired immune deficiency syndrome (HIV/AIDS). However, their use is sometimes limited by the development of a painful sensory neuropathy, which does not respond well to drugs. Smoked cannabis has been reported in clinical trials to have efficacy in relieving painful HIV-associated sensory neuropathy. Objectives: The aim of this study was to evaluate whether the expression of endocannabinoid system molecules is altered during NRTI-induced painful neuropathy, and also whether endocannabinoids can attenuate NRTI-induced painful neuropathy...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28333295/drug-resistance-in-antiretroviral-naive-children-newly-diagnosed-with-hiv-1-in-manaus-amazonas
#18
Solange Dourado de Andrade, Meritxell Sabidó, Wuelton Marcelo Monteiro, Adele Schwartz Benzaken, Amilcar Tanuri
Objectives: To determine the prevalence of drug resistance mutations (DRM), the prevalence of drug susceptibility [transmitted drug resistance (TDR)] and the prevalence of HIV-1 variants among treatment-naive HIV-infected children in Manaus, Amazonas state, Brazil. Methods: Children born to HIV-infected mothers and diagnosed with HIV in an HIV reference service centre and with available pol sequence between 2010 and 2015 prior to antiretroviral initiation were included...
June 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28333232/prevalence-of-hiv-1-drug-resistance-in-treated-patients-with-viral-load-50%C3%A2-copies-ml-a-2014-french-nationwide-study
#19
L Assoumou, C Charpentier, P Recordon-Pinson, M Grudé, C Pallier, L Morand-Joubert, S Fafi-Kremer, A Krivine, B Montes, V Ferré, M Bouvier-Alias, J-C Plantier, J Izopet, M-A Trabaud, S Yerly, J Dufayard, C Alloui, L Courdavault, H Le Guillou-Guillemette, A Maillard, C Amiel, A Vabret, C Roussel, S Vallet, J Guinard, A Mirand, A Beby-Defaux, F Barin, A Allardet-Servent, R Ait-Namane, M Wirden, C Delaugerre, V Calvez, M-L Chaix, D Descamps, S Reigadas
Background: Surveillance of HIV-1 resistance in treated patients with a detectable viral load (VL) is important to monitor, in order to assess the risk of spread of resistant viruses and to determine the proportion of patients who need new antiretroviral drugs with minimal cross-resistance. Methods: The HIV-1 protease and reverse transcriptase (RT) and integrase genes were sequenced in plasma samples from 782 consecutive patients on failing antiretroviral regimens, seen in 37 specialized centres in 2014...
June 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28329343/commonly-transmitted-hiv-1-drug-resistance-mutations-in-reverse-transcriptase-and-protease-in-antiretroviral-treatment-na%C3%A3-ve-patients-do-not-affect-response-to-tenofovir-disoproxil-fumarate-or-tenofovir-alafenamide-containing-regimens
#20
Nicolas A Margot, Pamela Wong, Rima Kulkarni, Kirsten White, Danielle Porter, Michael E Abram, Christian Callebaut, Michael D Miller
Background.: The presence of transmitted drug-resistance mutations (TDRM) in antiretroviral (ARV) treatment-naïve patients can adversely affect the outcome of ARV therapy. Methods.: Resistance testing was conducted in 6704 ARV-naïve subjects predominantly from the U.S. and Europe in 9 Gilead clinical studies from 2000 to 2013. Results.: The presence of TDRM increased during this period (5.2% to 11.4%), primarily driven by non-nucleoside RT inhibitor resistance mutations (NNRTI; 0...
January 30, 2017: Journal of Infectious Diseases
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